Everyone places their hope in something or someone. If your hope is not in Jesus Christ, then your hope could be in another person, wealth, career, or materialism. Hope is only as powerful as the object you're placing your hope in, many people, helping other people and things but those people and things did not rise from the dead. Those who have this hope in Christ keep themselves pure just as He is pure. Your life and actions should prove if you genuinely have hope in Christ.